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Post New Question
All Questions
+0
235709 Questions
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1
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+834
Algebra
In a store window, there was a box of berries having a total weight of $200$ kg. The berries were $99\%$ water, by weight. After two days in the sun, the water content of the berries was only $80\%$, by weight. What was the total weight
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gnistory
Nov 12, 2024
0
1
0
+834
Algebra
Ruth has a beaker containing a solution of $800$ mL of acid and $200$ mL of water. She thinks the solution is a little strong, so she drains $150$ mL from the beaker, adds $150$ mL of water, and stirs the solution. Ruth thinks the solution is
read more ..
gnistory
Nov 12, 2024
0
1
0
+834
Algebra
For a certain value of k, the system
x + y + 3z = 10,
x - 2y + 8z = 7,
kx + 5z = 3
has no solutions. What is this value of k?
gnistory
Nov 12, 2024
0
1
0
+337
Geometry
Triangle $ABC$ has altitudes $\overline{AD},$ $\overline{BE},$ and $\overline{CF}.$ If $AD = 12,$ $BE = 12,$ and $CF$ is a positive integer, then find the largest possible value of $CF.$
MeIdHunter
Nov 12, 2024
0
1
1
+337
Geometry
There are four cities: Capital City, Little Village, Mytown, and Yourtown. The distance from Capital City to Little Village is $5$ miles. The distance from Capital City to Mytown is $2$ miles. The distance from Mytown to Yourtown is $3$
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MeIdHunter
Nov 12, 2024
0
1
1
+337
Geometry
All the sides of a triangle are integers. If the perimeter of the triangle is $3,$ then how many different possible triangles are there? (Assume that the triangle is non-degenerate. Two triangles are considered the same if they are co
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MeIdHunter
Nov 12, 2024
Nov 11, 2024
+1
1
1
+5
Algebra
0=2xsquared-x-3
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Budgy
Nov 11, 2024
-1
1
0
+829
Algebra
Fill in the blanks to make a true equation:
1/(n(n + 3)(n + 5)) = __/n + ___/(n + 3) + ___/(n + 5)
AnswerscorrectIy
Nov 11, 2024
-1
1
1
+829
Algebra
Compute
\frac{1}{1 \times 4} + \frac{1}{4 \times 7} + \frac{1}{7 \times 12}
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AnswerscorrectIy
Nov 11, 2024
-1
1
1
+829
Algebra
Compute
1 + \frac{3}{6} + \frac{5}{6^2}
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AnswerscorrectIy
Nov 11, 2024
0
1
0
+829
Algebra
Point $A$ is reflected over the line shown below to point $B$. Find the coordinates of $B$.
Write your answer as an ordered pair $(x,y)$.
The line is y = x + 3, and A = (7,1).
AnswerscorrectIy
Nov 11, 2024
0
1
2
+30
Geometry
In a right triangle △ABC, ∠ABC=90∘, AB=6, and AC=10. Point D lies on side BC,
and AD is the altitude from vertex A to the hypotenuse BC. Find the length of BD.
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Sxchen1110
Nov 11, 2024
0
1
0
+1246
Algebra
In a store window, there was a box of berries having a total weight of 200 kg. The berries were 98% water, by weight. After two days in the sun, the water content of the berries was only 95%, by weight. What was the total weight of the berries
read more ..
Akhain1
Nov 11, 2024
0
1
0
+1246
Algebra
All members of our painting team paint at the same rate. If $10$ members can paint a $1000$ square foot wall in $10$ minutes, then how long would it take for $5$ members to paint a $1000$ square foot wall, in minutes?
Akhain1
Nov 11, 2024
0
1
0
+1246
Algebra
The graph of the equation
4x^2 - 12x + 4y^2 + 16y + 17 = -4x + 2y + 5
is a circle. Find the radius of the circle.
Akhain1
Nov 11, 2024
0
1
0
+834
Help me plz
Point $B$ is the image of point $A$ under a dilation with center $O$. If $OB = 30$, and the scale factor of the dilation is $5$, then what is $OA$?
RedDragonl
Nov 11, 2024
0
1
0
+834
need help with geo
The perimeter of a rectangle is $40,$ and the length of one of its diagonals is $10 \sqrt{2}.$ Find the area of the rectangle.
RedDragonl
Nov 11, 2024
0
1
1
+36
Interesting problem.. can’t figure it out! Please help soon.
In triangle PQR, let X be the intersection of the angle bisector of angle P with side QR, and let Y be the foot of the perpendicular from X to side PR . If PR =17, PQ= 9, and QR=10, compute the length of XY.
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surfz
Nov 11, 2024
0
1
1
+313
Algebra
Find the sum of all values of $k$ for which $x^2 + kx - 9x + 25 - 9$ is the square of a binomial.
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rtsdylifdts
Nov 11, 2024
0
1
0
+313
Algebra
Find the largest real number $c$ such that $1$ is in the range of $f(x)=x^2-5x+c-3x+8$.
rtsdylifdts
Nov 11, 2024
0
1
0
+313
Algebra
For what values of $j$ does the equation $(2x + 7)(x - 4) = -31 + jx$ have exactly one real solution? Express your answer as a list of numbers, separated by commas.
rtsdylifdts
Nov 11, 2024
0
1
0
+313
Algebra
Find the value of $v$ such that $\frac{-21-\sqrt{201}}{10}$ a root of $5x^2+21x+v = 0$.
rtsdylifdts
Nov 11, 2024
0
1
1
+4
Help
In physics, Ohm's law says that current through a wire, , is directly proportional to voltage, , and inversely proportional to resistance, :
I=V/R
It's also true that resistance is directly proportional
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red112598
Nov 11, 2024
0
1
0
+85
slope
The equation r = 6t gives the number of albums released, r, by a record label over time in years, t. If you graph this relationship with time along the x-axis and the number of albums along the y-axis, which points lie on the resulting line?
Alyssiaca
Nov 11, 2024
0
1
0
+834
Geometry
Trapezoid $HGFE$ is inscribed in a circle, with $\overline{EF} \parallel \overline{GH}$. If arc $GH$ is $66$ degrees, arc $EH$ is $x^2 + 8x$ degrees, and arc $FG$ is $25 + 16x$ degrees, where $x > 0,$ find arc $EPF$, in degrees.
gnistory
Nov 11, 2024
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